bttv BUG?

From: Martin Klaffenboeck
Date: Sat Dec 06 2003 - 06:40:21 EST

Hello,

I'm trying to get my pinnacle pctv rave card working. It works, but I cannot get any signal, but I think, the cable is ok. I think the kernel output should help me...

martin root # uname -a
Linux martin.kleinerdrache.org 2.6.0-test11-gentoo-r1 #4 SMP Fri Dec 5 13:57:02 CET 2003 i686 AMD Athlon(tm) Processor AuthenticAMD GNU/Linux



When I load the bttv (via modprobe) I get the dmesg output:

bttv: driver version 0.9.12 loaded
bttv: using 8 buffers with 2080k (520 pages) each for capture
bttv: Bt8xx card found (0).
bttv0: Bt878 (rev 17) at 0000:00:0b.0, irq: 4, latency: 64, mmio: 0xcddfe000
bttv0: detected: Pinnacle PCTV [card=39], PCI subsystem ID is 11bd:0012
bttv0: using: Pinnacle PCTV Studio/Rave [card=39,insmod option]
tda9887: chip found @ 0x86
registering 1-0043
bttv0: i2c: checking for MSP34xx @ 0x80... not found
bttv0: pinnacle/mt: id=1 info="PAL / mono" radio=no
bttv0: using tuner=33
bttv0: i2c: checking for MSP34xx @ 0x80... not found
bttv0: i2c: checking for TDA9875 @ 0xb0... not found
bttv0: i2c: checking for TDA7432 @ 0x8a... not found
tuner: chip found @ 0xc0
tuner: type set to 33 (MT2032 universal)
MT2032: Companycode=3cbf Part=42 Revision=40
MT2032 hexdump:
42 40 20 c1 00 18 f4 77 29 04 85 04 88 60 f0 05
24 3c bf 42 40
not a MT2032.
registering 1-0060
MT2032: Companycode=3cbf Part=42 Revision=40
MT2032 hexdump:
42 40 20 c1 00 18 f4 77 29 04 85 04 88 60 f0 05
24 3c bf 42 40
not a MT2032.
bttv0: registered device video0
bttv0: registered device vbi0
bttv0: PLL: 28636363 => 35468950 .. ok

Then I use tvtime to scan some stations. (Its the same with scantv from xawtv).

I get from dmesg:

bttv0: skipped frame. no signal? high irq latency?
bttv0: skipped frame. no signal? high irq latency?
bttv0: skipped frame. no signal? high irq latency?
tuner: tv freq set to 273.25
mt2032_set_if_freq rfin=273250000 if1=1090000000 if2=38900000 from=32900000 to=39900000
mt2032: rfin=273250000 lo1=260 lo1n=32 lo1a=4 sel=4, lo1freq=1365000000
mt2032: rfin=273250000 lo2=200 lo2n=25 lo2a=0 num=2052 lo2freq=1052850000
spurcheck f1=1365000 f2=1052850 from=32900 to=39900
spurtest n1=1 n2=-2 ftest=-740700
spurtest n1=1 n2=-3 ftest=-1793550
spurtest n1=1 n2=-4 ftest=-2846400
spurtest n1=1 n2=-5 ftest=-3899250
spurtest n1=2 n2=-3 ftest=-428550
spurtest n1=2 n2=-4 ftest=-1481400
spurtest n1=2 n2=-5 ftest=-2534250
spurtest n1=3 n2=-4 ftest=-116400
spurtest n1=3 n2=-5 ftest=-1169250
spurtest n1=4 n2=-5 ftest=195750
mt2032 Reg.E=0xf0
mt2032: pll wait 1ms for lock (0xf0)
mt2032 Reg.E=0xf0
mt2032: pll wait 1ms for lock (0xf0)
mt2032 Reg.E=0xf0
mt2032: pll wait 1ms for lock (0xf0)
mt2032 Reg.E=0xf0
mt2032: pll wait 1ms for lock (0xf0)
mt2032 Reg.E=0xf0
mt2032: pll wait 1ms for lock (0xf0)
mt2032 Reg.E=0xf0
mt2032: pll wait 1ms for lock (0xf0)
mt2032 Reg.E=0xf0
mt2032: pll wait 1ms for lock (0xf0)
mt2032 Reg.E=0xf0
mt2032: pll wait 1ms for lock (0xf0)
mt2032 Reg.E=0xf0
mt2032: pll wait 1ms for lock (0xf0)
mt2032 Reg.E=0xf0
mt2032: pll wait 1ms for lock (0xf0)
mt2032 Reg.F=0x05
mt2032: re-init PLLs by LINT
mt2032 Reg.E=0xf0
mt2032: pll wait 1ms for lock (0xf0)
mt2032 Reg.E=0xf0
mt2032: pll wait 1ms for lock (0xf0)
mt2032 Reg.E=0xf0
mt2032: pll wait 1ms for lock (0xf0)
mt2032 Reg.E=0xf0
mt2032: pll wait 1ms for lock (0xf0)
mt2032 Reg.E=0xf0
mt2032: pll wait 1ms for lock (0xf0)
mt2032 Reg.E=0xf0
mt2032: pll wait 1ms for lock (0xf0)
mt2032 Reg.E=0xf0
mt2032: pll wait 1ms for lock (0xf0)
mt2032 Reg.E=0xf0
mt2032: pll wait 1ms for lock (0xf0)
mt2032 Reg.E=0xf0
mt2032: pll wait 1ms for lock (0xf0)
mt2032 Reg.E=0xf0
mt2032: pll wait 1ms for lock (0xf0)
mt2032 Reg.F=0x05
mt2032: re-init PLLs by LINT
MT2032 Fatal Error: PLLs didn't lock.

And I get many of this. My /var/log/everything/current (on gentoo, its
/var/log/messages on other distributions) tells me:

Dec 6 12:30:00 [kernel] tuner: tv freq set to 259.25
Dec 6 12:30:00 [kernel] bttv0: skipped frame. no signal? high irq latency?
- Last output repeated 3 times -
Dec 6 12:30:01 [kernel] tuner: tv freq set to 266.25
Dec 6 12:30:01 [kernel] bttv0: skipped frame. no signal? high irq latency?
- Last output repeated 2 times -


what does this irq latency mean? together with:

martin root # cat /proc/interrupts
CPU0
0: 1939804 XT-PIC timer
1: 5113 XT-PIC i8042
2: 0 XT-PIC cascade
3: 57 XT-PIC eth1
4: 1520 XT-PIC bttv0
8: 26331 XT-PIC rtc
9: 0 XT-PIC acpi
10: 122486 XT-PIC SiS SI7012, eth0
11: 146484 XT-PIC nvidia
12: 175303 XT-PIC i8042
14: 165696 XT-PIC ide0
15: 21 XT-PIC ide1
NMI: 0
LOC: 1939802
ERR: 2655
MIS: 0

I cannot understand this message.

Maybe you can help me out? Please tell me if you need more information.

Thanks,
Martin
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